What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.


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    How can I prevent multiple submissions based on the Email Address?

    Asked by mithunbhowmick123 on February 04, 2017 at 01:40 AM

    One email address can register several time .i want to stop this.

    please set up it.

    Mithun

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    JotForm Support

    Answered by Jim_R on February 04, 2017 at 04:57 AM

    Hello Mithun, just set the Email Address field as the Unique Question on your form.

    Complete guide: How-to-set-Form-Limits-Based-on-a-Unique-Question

    In case we misunderstood your question, just get back to us with a bit more info and a clearer description of what you're trying to do so we can better assist you.